Products
Cisco IOS XE Software
Source
ykramarz@cisco.com
Tags
CVE-2024-20455 details
Last Modified : Sept. 25, 2024, 5:15 p.m.
Description
A vulnerability in the process that classifies traffic that is going to the Unified Threat Defense (UTD) component of Cisco IOS XE Software in controller mode could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because UTD improperly handles certain packets as those packets egress an SD-WAN IPsec tunnel. An attacker could exploit this vulnerability by sending crafted traffic through an SD-WAN IPsec tunnel that is configured on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: SD-WAN tunnels that are configured with Generic Routing Encapsulation (GRE) are not affected by this vulnerability.
CVSS Score
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8.6 | 9 | 10 |
|---|
Weakness
| Weakness | Name | Description |
|---|
CVSS Data
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Base Score
8.6
Exploitability Score
3.9
Impact Score
4.0
Base Severity
HIGH
Vector String : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
References
| URL | Source |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-utd-dos-hDATqxs | ykramarz@cisco.com |